1 Kings 1:1-3

1 Now king David was old [and] stricken in years, and they covered him with clothes, but he did not become warm.

2 Therefore, his servants said unto him, Let there be sought for my lord the king a young virgin, and let her stand before the king and let her warm him and let her lie in thy bosom, and she shall warm my lord the king.

3 So they sought for a fair damsel throughout all the borders of Israel and found Abishag, a Shunammite and brought her to the king.